- 15 3月, 2019 1 次提交
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由 George Zhang 提交于
LVS fullnat will replace network traffic's source ip with its local ip, and thus the backend servers cannot obtain the real client ip. To solve this, LVS has introduced the tcp option address (TOA) to store the essential ip address information in the last tcp ack packet of the 3-way handshake, and the backend servers need to retrieve it from the packet header. In this patch, we have introduced the sk_toa_data member in the sock structure to hold the TOA information. There used to be an in-tree module for TOA managing, whereas it has now been maintained as an standalone module. In this case, the toa module should register its hook function(s) using the provided interfaces in the hookers module. TOA in sock structure: __be32 sk_toa_data[16]; The hookers module only provides the sk_toa_data placeholder, and the toa module can use this variable through the layout it needs. Hook interfaces: The hookers module replaces the kernel's syn_recv_sock and getname handler with a stub that chains the toa module's hook function(s) to the original handling function. The hookers module allows hook functions to be installed and uninstalled in any order. toa module: The external toa module will be provided in separate RPM package. [xuyu@linux.alibaba.com: amend commit log] Signed-off-by: NGeorge Zhang <georgezhang@linux.alibaba.com> Signed-off-by: NXu Yu <xuyu@linux.alibaba.com> Reviewed-by: NCaspar Zhang <caspar@linux.alibaba.com>
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- 28 6月, 2018 1 次提交
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由 Masahiro Yamada 提交于
With the brand-new syntax extension of Kconfig, we can directly check the compiler capability in the configuration phase. If the cc-can-link.sh fails, the BPFILTER_UMH is automatically hidden by the dependency. I also deleted 'default n', which is no-op. Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 6月, 2018 1 次提交
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由 Alexei Starovoitov 提交于
check that CC can build executables and use that compiler instead of HOSTCC Suggested-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 24 5月, 2018 1 次提交
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由 Alexei Starovoitov 提交于
bpfilter.ko consists of bpfilter_kern.c (normal kernel module code) and user mode helper code that is embedded into bpfilter.ko The steps to build bpfilter.ko are the following: - main.c is compiled by HOSTCC into the bpfilter_umh elf executable file - with quite a bit of objcopy and Makefile magic the bpfilter_umh elf file is converted into bpfilter_umh.o object file with _binary_net_bpfilter_bpfilter_umh_start and _end symbols Example: $ nm ./bld_x64/net/bpfilter/bpfilter_umh.o 0000000000004cf8 T _binary_net_bpfilter_bpfilter_umh_end 0000000000004cf8 A _binary_net_bpfilter_bpfilter_umh_size 0000000000000000 T _binary_net_bpfilter_bpfilter_umh_start - bpfilter_umh.o and bpfilter_kern.o are linked together into bpfilter.ko bpfilter_kern.c is a normal kernel module code that calls the fork_usermode_blob() helper to execute part of its own data as a user mode process. Notice that _binary_net_bpfilter_bpfilter_umh_start - end is placed into .init.rodata section, so it's freed as soon as __init function of bpfilter.ko is finished. As part of __init the bpfilter.ko does first request/reply action via two unix pipe provided by fork_usermode_blob() helper to make sure that umh is healthy. If not it will kill it via pid. Later bpfilter_process_sockopt() will be called from bpfilter hooks in get/setsockopt() to pass iptable commands into umh via bpfilter.ko If admin does 'rmmod bpfilter' the __exit code bpfilter.ko will kill umh as well. Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 5月, 2018 1 次提交
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由 Björn Töpel 提交于
In this commit the base structure of the AF_XDP address family is set up. Further, we introduce the abilty register a window of user memory to the kernel via the XDP_UMEM_REG setsockopt syscall. The memory window is viewed by an AF_XDP socket as a set of equally large frames. After a user memory registration all frames are "owned" by the user application, and not the kernel. v2: More robust checks on umem creation and unaccount on error. Call set_page_dirty_lock on cleanup. Simplified xdp_umem_reg. Co-authored-by: NMagnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: NMagnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: NBjörn Töpel <bjorn.topel@intel.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
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- 28 11月, 2017 1 次提交
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由 Stephen Hemminger 提交于
The Netware IPX protocol is very old and no one should still be using it. It is time to move it into staging for a while and eventually decommision it. Signed-off-by: NStephen Hemminger <stephen@networkplumber.org> Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 02 11月, 2017 1 次提交
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由 Greg Kroah-Hartman 提交于
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: NKate Stewart <kstewart@linuxfoundation.org> Reviewed-by: NPhilippe Ombredanne <pombredanne@nexb.com> Reviewed-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 30 8月, 2017 1 次提交
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由 Jiri Benc 提交于
Add a new nsh/ directory. It currently holds only GSO functions but more will come: in particular, code shared by openvswitch and tc to manipulate NSH headers. For now, assume there's no hardware support for NSH segmentation. We can always introduce netdev->nsh_features later. Signed-off-by: NJiri Benc <jbenc@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 8月, 2017 1 次提交
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由 Greg Kroah-Hartman 提交于
It's time to get rid of IRDA. It's long been broken, and no one seems to use it anymore. So move it to staging and after a while, we can delete it from there. To start, move the network irda core from net/irda to drivers/staging/irda/net/ Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 6月, 2017 1 次提交
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由 Dave Watson 提交于
Software implementation of transport layer security, implemented using ULP infrastructure. tcp proto_ops are replaced with tls equivalents of sendmsg and sendpage. Only symmetric crypto is done in the kernel, keys are passed by setsockopt after the handshake is complete. All control messages are supported via CMSG data - the actual symmetric encryption is the same, just the message type needs to be passed separately. For user API, please see Documentation patch. Pieces that can be shared between hw and sw implementation are in tls_main.c Signed-off-by: NBoris Pismenny <borisp@mellanox.com> Signed-off-by: NIlya Lesokhin <ilyal@mellanox.com> Signed-off-by: NAviad Yehezkel <aviadye@mellanox.com> Signed-off-by: NDave Watson <davejwatson@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 4月, 2017 1 次提交
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由 Alexei Starovoitov 提交于
development and testing of networking bpf programs is quite cumbersome. Despite availability of user space bpf interpreters the kernel is the ultimate authority and execution environment. Current test frameworks for TC include creation of netns, veth, qdiscs and use of various packet generators just to test functionality of a bpf program. XDP testing is even more complicated, since qemu needs to be started with gro/gso disabled and precise queue configuration, transferring of xdp program from host into guest, attaching to virtio/eth0 and generating traffic from the host while capturing the results from the guest. Moreover analyzing performance bottlenecks in XDP program is impossible in virtio environment, since cost of running the program is tiny comparing to the overhead of virtio packet processing, so performance testing can only be done on physical nic with another server generating traffic. Furthermore ongoing changes to user space control plane of production applications cannot be run on the test servers leaving bpf programs stubbed out for testing. Last but not least, the upstream llvm changes are validated by the bpf backend testsuite which has no ability to test the code generated. To improve this situation introduce BPF_PROG_TEST_RUN command to test and performance benchmark bpf programs. Joint work with Daniel Borkmann. Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 2月, 2017 1 次提交
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由 Yotam Gigi 提交于
This module is responsible for the ife encapsulation protocol encode/decode logics. That module can: - ife_encode: encode skb and reserve space for the ife meta header - ife_decode: decode skb and extract the meta header size - ife_tlv_meta_encode - encodes one tlv entry into the reserved ife header space. - ife_tlv_meta_decode - decodes one tlv entry from the packet - ife_tlv_meta_next - advance to the next tlv Reviewed-by: NJiri Pirko <jiri@mellanox.com> Signed-off-by: NYotam Gigi <yotamg@mellanox.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NRoman Mashak <mrv@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 1月, 2017 1 次提交
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由 Yotam Gigi 提交于
Add a general way for kernel modules to sample packets, without being tied to any specific subsystem. This netlink channel can be used by tc, iptables, etc. and allow to standardize packet sampling in the kernel. For every sampled packet, the psample module adds the following metadata fields: PSAMPLE_ATTR_IIFINDEX - the packets input ifindex, if applicable PSAMPLE_ATTR_OIFINDEX - the packet output ifindex, if applicable PSAMPLE_ATTR_ORIGSIZE - the packet's original size, in case it has been truncated during sampling PSAMPLE_ATTR_SAMPLE_GROUP - the packet's sample group, which is set by the user who initiated the sampling. This field allows the user to differentiate between several samplers working simultaneously and filter packets relevant to him PSAMPLE_ATTR_GROUP_SEQ - sequence counter of last sent packet. The sequence is kept for each group PSAMPLE_ATTR_SAMPLE_RATE - the sampling rate used for sampling the packets PSAMPLE_ATTR_DATA - the actual packet bits The sampled packets are sent to the PSAMPLE_NL_MCGRP_SAMPLE multicast group. In addition, add the GET_GROUPS netlink command which allows the user to see the current sample groups, their refcount and sequence number. This command currently supports only netlink dump mode. Signed-off-by: NYotam Gigi <yotamg@mellanox.com> Signed-off-by: NJiri Pirko <jiri@mellanox.com> Reviewed-by: NJamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 1月, 2017 1 次提交
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由 Ursula Braun 提交于
* enable smc module loading and unloading * register new socket family * basic smc socket creation and deletion * use backing TCP socket to run CLC (Connection Layer Control) handshake of SMC protocol * Setup for infiniband traffic is implemented in follow-on patches. For now fallback to TCP socket is always used. Signed-off-by: NUrsula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: NUtz Bacher <utz.bacher@de.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 8月, 2016 1 次提交
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由 Tom Herbert 提交于
This patch introduces a utility for parsing application layer protocol messages in a TCP stream. This is a generalization of the mechanism implemented of Kernel Connection Multiplexor. The API includes a context structure, a set of callbacks, utility functions, and a data ready function. A stream parser instance is defined by a strparse structure that is bound to a TCP socket. The function to initialize the structure is: int strp_init(struct strparser *strp, struct sock *csk, struct strp_callbacks *cb); csk is the TCP socket being bound to and cb are the parser callbacks. The upper layer calls strp_tcp_data_ready when data is ready on the lower socket for strparser to process. This should be called from a data_ready callback that is set on the socket: void strp_tcp_data_ready(struct strparser *strp); A parser is bound to a TCP socket by setting data_ready function to strp_tcp_data_ready so that all receive indications on the socket go through the parser. This is assumes that sk_user_data is set to the strparser structure. There are four callbacks. - parse_msg is called to parse the message (returns length or error). - rcv_msg is called when a complete message has been received - read_sock_done is called when data_ready function exits - abort_parser is called to abort the parser The input to parse_msg is an skbuff which contains next message under construction. The backend processing of parse_msg will parse the application layer protocol headers to determine the length of the message in the stream. The possible return values are: >0 : indicates length of successfully parsed message 0 : indicates more data must be received to parse the message -ESTRPIPE : current message should not be processed by the kernel, return control of the socket to userspace which can proceed to read the messages itself other < 0 : Error is parsing, give control back to userspace assuming that synchronzation is lost and the stream is unrecoverable (application expected to close TCP socket) In the case of error return (< 0) strparse will stop the parser and report and error to userspace. The application must deal with the error. To handle the error the strparser is unbound from the TCP socket. If the error indicates that the stream TCP socket is at recoverable point (ESTRPIPE) then the application can read the TCP socket to process the stream. Once the application has dealt with the exceptions in the stream, it may again bind the socket to a strparser to continue data operations. Note that ENODATA may be returned to the application. In this case parse_msg returned -ESTRPIPE, however strparser was unable to maintain synchronization of the stream (i.e. some of the message in question was already read by the parser). strp_pause and strp_unpause are used to provide flow control. For instance, if rcv_msg is called but the upper layer can't immediately consume the message it can hold the message and pause strparser. Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 7月, 2016 1 次提交
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由 Gavin Shan 提交于
NCSI spec (DSP0222) defines several objects: package, channel, mode, filter, version and statistics etc. This introduces the data structs to represent those objects and implement functions to manage them. Also, this introduces CONFIG_NET_NCSI for the newly implemented NCSI stack. * The user (e.g. netdev driver) dereference NCSI device by "struct ncsi_dev", which is embedded to "struct ncsi_dev_priv". The later one is used by NCSI stack internally. * Every NCSI device can have multiple packages simultaneously, up to 8 packages. It's represented by "struct ncsi_package" and identified by 3-bits ID. * Every NCSI package can have multiple channels, up to 32. It's represented by "struct ncsi_channel" and identified by 5-bits ID. * Every NCSI channel has version, statistics, various modes and filters. They are represented by "struct ncsi_channel_version", "struct ncsi_channel_stats", "struct ncsi_channel_mode" and "struct ncsi_channel_filter" separately. * Apart from AEN (Asynchronous Event Notification), the NCSI stack works in terms of command and response. This introduces "struct ncsi_req" to represent a complete NCSI transaction made of NCSI request and response. link: https://www.dmtf.org/sites/default/files/standards/documents/DSP0222_1.1.0.pdfSigned-off-by: NGavin Shan <gwshan@linux.vnet.ibm.com> Acked-by: NJoel Stanley <joel@jms.id.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 5月, 2016 1 次提交
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由 Courtney Cavin 提交于
Add an implementation of Qualcomm's IPC router protocol, used to communicate with service providing remote processors. Signed-off-by: NCourtney Cavin <courtney.cavin@sonymobile.com> Signed-off-by: NBjorn Andersson <bjorn.andersson@sonymobile.com> [bjorn: Cope with 0 being a valid node id and implement RTM_NEWADDR] Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 3月, 2016 1 次提交
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由 Tom Herbert 提交于
This module implements the Kernel Connection Multiplexor. Kernel Connection Multiplexor (KCM) is a facility that provides a message based interface over TCP for generic application protocols. With KCM an application can efficiently send and receive application protocol messages over TCP using datagram sockets. For more information see the included Documentation/networking/kcm.txt Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 9月, 2015 1 次提交
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由 David Ahern 提交于
L3 master devices allow users of the abstraction to influence FIB lookups for enslaved devices. Current API provides a means for the master device to return a specific FIB table for an enslaved device, to return an rtable/custom dst and influence the OIF used for fib lookups. Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 3月, 2015 1 次提交
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由 Eric W. Biederman 提交于
This refactoring is needed to allow more than just mpls gso support to be built into the mpls moddule. Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 12月, 2014 1 次提交
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由 Al Viro 提交于
As it is, default ->i_fop has NULL ->open() (along with all other methods). The only case where it matters is reopening (via procfs symlink) a file that didn't get its ->f_op from ->i_fop - anything else will have ->i_fop assigned to something sane (default would fail on read/write/ioctl/etc.). Unfortunately, such case exists - alloc_file() users, especially anon_get_file() ones. There we have tons of opened files of very different kinds sharing the same inode. As the result, attempt to reopen those via procfs succeeds and you get a descriptor you can't do anything with. Moreover, in case of sockets we set ->i_fop that will only be used on such reopen attempts - and put a failing ->open() into it to make sure those do not succeed. It would be simpler to put such ->open() into default ->i_fop and leave it unchanged both for anon inode (as we do anyway) and for socket ones. Result: * everything going through do_dentry_open() works as it used to * sock_no_open() kludge is gone * attempts to reopen anon-inode files fail as they really ought to * ditto for aio_private_file() * ditto for perfmon - this one actually tried to imitate sock_no_open() trick, but failed to set ->i_fop, so in the current tree reopens succeed and yield completely useless descriptor. Intent clearly had been to fail with -ENXIO on such reopens; now it actually does. * everything else that used alloc_file() keeps working - it has ->i_fop set for its inodes anyway Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 03 12月, 2014 1 次提交
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由 Jiri Pirko 提交于
The goal of this is to provide a possibility to support various switch chips. Drivers should implement relevant ndos to do so. Now there is only one ndo defined: - for getting physical switch id is in place. Note that user can use random port netdevice to access the switch. Signed-off-by: NJiri Pirko <jiri@resnulli.us> Reviewed-by: NThomas Graf <tgraf@suug.ch> Acked-by: NAndy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 7月, 2014 1 次提交
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由 Alexander Aring 提交于
This patch moves generic code which is used by bluetooth and ieee802154 6lowpan to a new net/6lowpan directory. This directory contains generic 6LoWPAN code which is shared between bluetooth and ieee802154 MAC-Layer. This is the IPHC - "IPv6 Header Compression" format at the moment. Which is described by RFC 6282 [0]. The BLTE 6LoWPAN draft describes that the IPHC is the same format like IEEE 802.15.4, see [1]. Futuremore we can put more code into this directory which is shared between BLTE and IEEE 802.15.4 6LoWPAN like RFC 6775 or the routing protocol RPL RFC 6550. To avoid naming conflicts I renamed 6lowpan-y to ieee802154_6lowpan-y in net/ieee802154/Makefile. [0] http://tools.ietf.org/html/rfc6282 [1] http://tools.ietf.org/html/draft-ietf-6lowpan-btle-12#section-3.2 [2] http://tools.ietf.org/html/rfc6775 [3] http://tools.ietf.org/html/rfc6550Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Acked-by: NJukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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- 16 1月, 2014 1 次提交
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由 Dmitry Eremin-Solenikov 提交于
IEEE 802.15.4 and Bluetooth networking stacks share 6lowpan compression code. Instead of introducing Makefile/Kconfig hacks, build this code as a separate module referenced from both ieee802154 and bluetooth modules. This fixes the following build error observed in some kernel configurations: net/built-in.o: In function `header_create': 6lowpan.c:(.text+0x166149): undefined reference to `lowpan_header_compress' net/built-in.o: In function `bt_6lowpan_recv': (.text+0x166b3c): undefined reference to `lowpan_process_data' Reported-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NDmitry Eremin-Solenikov <dmitry_eremin@mentor.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 11月, 2013 1 次提交
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由 Arvid Brodin 提交于
High-availability Seamless Redundancy ("HSR") provides instant failover redundancy for Ethernet networks. It requires a special network topology where all nodes are connected in a ring (each node having two physical network interfaces). It is suited for applications that demand high availability and very short reaction time. HSR acts on the Ethernet layer, using a registered Ethernet protocol type to send special HSR frames in both directions over the ring. The driver creates virtual network interfaces that can be used just like any ordinary Linux network interface, for IP/TCP/UDP traffic etc. All nodes in the network ring must be HSR capable. This code is a "best effort" to comply with the HSR standard as described in IEC 62439-3:2010 (HSRv0). Signed-off-by: NArvid Brodin <arvid.brodin@xdin.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 5月, 2013 1 次提交
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由 Simon Horman 提交于
In the case where a non-MPLS packet is received and an MPLS stack is added it may well be the case that the original skb is GSO but the NIC used for transmit does not support GSO of MPLS packets. The aim of this code is to provide GSO in software for MPLS packets whose skbs are GSO. SKB Usage: When an implementation adds an MPLS stack to a non-MPLS packet it should do the following to skb metadata: * Set skb->inner_protocol to the old non-MPLS ethertype of the packet. skb->inner_protocol is added by this patch. * Set skb->protocol to the new MPLS ethertype of the packet. * Set skb->network_header to correspond to the end of the L3 header, including the MPLS label stack. I have posted a patch, "[PATCH v3.29] datapath: Add basic MPLS support to kernel" which adds MPLS support to the kernel datapath of Open vSwtich. That patch sets the above requirements in datapath/actions.c:push_mpls() and was used to exercise this code. The datapath patch is against the Open vSwtich tree but it is intended that it be added to the Open vSwtich code present in the mainline Linux kernel at some point. Features: I believe that the approach that I have taken is at least partially consistent with the handling of other protocols. Jesse, I understand that you have some ideas here. I am more than happy to change my implementation. This patch adds dev->mpls_features which may be used by devices to advertise features supported for MPLS packets. A new NETIF_F_MPLS_GSO feature is added for devices which support hardware MPLS GSO offload. Currently no devices support this and MPLS GSO always falls back to software. Alternate Implementation: One possible alternate implementation is to teach netif_skb_features() and skb_network_protocol() about MPLS, in a similar way to their understanding of VLANs. I believe this would avoid the need for net/mpls/mpls_gso.c and in particular the calls to __skb_push() and __skb_push() in mpls_gso_segment(). I have decided on the implementation in this patch as it should not introduce any overhead in the case where mpls_gso is not compiled into the kernel or inserted as a module. MPLS GSO suggested by Jesse Gross. Based in part on "v4 GRE: Add TCP segmentation offload for GRE" by Pravin B Shelar. Cc: Jesse Gross <jesse@nicira.com> Cc: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 2月, 2013 1 次提交
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由 Andy King 提交于
VM Sockets allows communication between virtual machines and the hypervisor. User level applications both in a virtual machine and on the host can use the VM Sockets API, which facilitates fast and efficient communication between guest virtual machines and their host. A socket address family, designed to be compatible with UDP and TCP at the interface level, is provided. Today, VM Sockets is used by various VMware Tools components inside the guest for zero-config, network-less access to VMware host services. In addition to this, VMware's users are using VM Sockets for various applications, where network access of the virtual machine is restricted or non-existent. Examples of this are VMs communicating with device proxies for proprietary hardware running as host applications and automated testing of applications running within virtual machines. The VMware VM Sockets are similar to other socket types, like Berkeley UNIX socket interface. The VM Sockets module supports both connection-oriented stream sockets like TCP, and connectionless datagram sockets like UDP. The VM Sockets protocol family is defined as "AF_VSOCK" and the socket operations split for SOCK_DGRAM and SOCK_STREAM. For additional information about the use of VM Sockets, please refer to the VM Sockets Programming Guide available at: https://www.vmware.com/support/developer/vmci-sdk/Signed-off-by: NGeorge Zhang <georgezhang@vmware.com> Signed-off-by: NDmitry Torokhov <dtor@vmware.com> Signed-off-by: NAndy king <acking@vmware.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2013 1 次提交
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由 Paul Gortmaker 提交于
The original suggestion to delete wanrouter started earlier with the mainline commit f0d1b3c2 ("net/wanrouter: Deprecate and schedule for removal") in May 2012. More importantly, Dan Carpenter found[1] that the driver had a fundamental breakage introduced back in 2008, with commit 7be6065b ("netdevice wanrouter: Convert directly reference of netdev->priv"). So we know with certainty that the code hasn't been used by anyone willing to at least take the effort to send an e-mail report of breakage for at least 4 years. This commit does a decouple of the wanrouter subsystem, by going after the Makefile/Kconfig and similar files, so that these mainline files that we are keeping do not have the big wanrouter file/driver deletion commit tied into their history. Once this commit is in place, we then can remove the obsolete cyclomx drivers and similar that have a dependency on CONFIG_WAN_ROUTER_DRIVERS. [1] http://www.spinics.net/lists/netdev/msg218670.htmlOriginally-by: NJoe Perches <joe@perches.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
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- 18 11月, 2012 1 次提交
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由 Vlad Yasevich 提交于
Some pieces of network use core pieces of IPv6 stack. Keep them available while letting new GSO offload pieces depend on CONFIG_INET. Signed-off-by: NVlad Yasevich <vyasevic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 11月, 2012 1 次提交
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由 Vlad Yasevich 提交于
IPv6 build selection currently controlled by CONFIG_NET, so it is possible to build IPv6 functinality without selectiona any TCP/IP features (CONFIG_INET). Make IPv6 be consistent with IPv4. This should resolve the following issue: net/built-in.o: In function `tcp6_gro_complete': tcpv6_offload.c:(.text+0x3d045): undefined reference to `tcp_gro_complete' net/built-in.o: In function `tcp6_gro_receive': tcpv6_offload.c:(.text+0x3d19b): undefined reference to `tcp_gro_receive' net/built-in.o: In function `ipv6_exthdrs_offload_init': (.init.text+0x118b): undefined reference to `inet_del_offload' net/built-in.o:(.rodata+0x1c58): undefined reference to `tcp_tso_segment' Signed-off-by: NVlad Yasevich <vyasvic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 5月, 2012 1 次提交
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由 Stephen Hemminger 提交于
More spring cleaning! The ancient Econet protocol should go. Most of the bug fixes in recent years have been fixing security vulnerabilities. The hardware hasn't been made since the 90s, it is only interesting as an archeological curiosity. For the truly curious, or insomniac, go read up on it. http://en.wikipedia.org/wiki/EconetSigned-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 5月, 2012 1 次提交
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An interface to allocate and register ieee802154 compatible device. The allocated device has the following representation in memory: +-----------------------+ | struct wpan_phy | +-----------------------+ | struct mac802154_priv | +-----------------------+ | driver's private data | +-----------------------+ Used by device drivers to register new instance in the stack. Signed-off-by: NAlexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 12月, 2011 1 次提交
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由 Jesse Gross 提交于
Open vSwitch is a multilayer Ethernet switch targeted at virtualized environments. In addition to supporting a variety of features expected in a traditional hardware switch, it enables fine-grained programmatic extension and flow-based control of the network. This control is useful in a wide variety of applications but is particularly important in multi-server virtualization deployments, which are often characterized by highly dynamic endpoints and the need to maintain logical abstractions for multiple tenants. The Open vSwitch datapath provides an in-kernel fast path for packet forwarding. It is complemented by a userspace daemon, ovs-vswitchd, which is able to accept configuration from a variety of sources and translate it into packet processing rules. See http://openvswitch.org for more information and userspace utilities. Signed-off-by: NJesse Gross <jesse@nicira.com>
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- 06 7月, 2011 1 次提交
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由 Lauro Ramos Venancio 提交于
The NFC subsystem core is responsible for providing the device driver interface. It is also responsible for providing an interface to the control operations and data exchange. Signed-off-by: NLauro Ramos Venancio <lauro.venancio@openbossa.org> Signed-off-by: NAloisio Almeida Jr <aloisio.almeida@openbossa.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 08 3月, 2011 1 次提交
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由 Thomas Graf 提交于
exthdrs_core.c and addrconf_core.c in net/ipv6/ contain bits which must be made available even if IPv6 is disabled. net/ipv6/Makefile already correctly includes them if CONFIG_IPV6=n but net/Makefile prevents entering the subdirectory. Signed-off-by: NThomas Graf <tgraf@infradead.org> Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2011 2 次提交
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由 Greg Kroah-Hartman 提交于
This reverts commit a6238f21 Appletalk got some patches to fix up the BLK usage in it in the network tree, so this removal isn't needed. Cc: Arnd Bergmann <arnd@arndb.de> Cc: <acme@ghostprotocols.net> Cc: netdev@vger.kernel.org, Cc: David Miller <davem@davemloft.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
For all I know, Appletalk is dead, the only reasonable use right now would be nostalgia, and that can be served well enough by old kernels. The code is largely not in a bad shape, but it still uses the big kernel lock, and nobody seems motivated to change that. FWIW, the last release of MacOS that supported Appletalk was MacOS X 10.5, made in 2007, and it has been abandoned by Apple with 10.6. Using TCP/IP instead of Appletalk has been supported since MacOS 7.6, which was released in 1997 and is able to run on most of the legacy hardware. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: netdev@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 12月, 2010 1 次提交
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由 Sven Eckelmann 提交于
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See http://www.open-mesh.org/ for more information and user space tools. Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 10月, 2010 1 次提交
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由 Yehuda Sadeh 提交于
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: NSage Weil <sage@newdream.net>
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- 06 8月, 2010 1 次提交
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由 Wang Lei 提交于
Separate out the DNS resolver key type from the CIFS filesystem into its own module so that it can be made available for general use, including the AFS filesystem module. This facility makes it possible for the kernel to upcall to userspace to have it issue DNS requests, package up the replies and present them to the kernel in a useful form. The kernel is then able to cache the DNS replies as keys can be retained in keyrings. Resolver keys are of type "dns_resolver" and have a case-insensitive description that is of the form "[<type>:]<domain_name>". The optional <type> indicates the particular DNS lookup and packaging that's required. The <domain_name> is the query to be made. If <type> isn't given, a basic hostname to IP address lookup is made, and the result is stored in the key in the form of a printable string consisting of a comma-separated list of IPv4 and IPv6 addresses. This key type is supported by userspace helpers driven from /sbin/request-key and configured through /etc/request-key.conf. The cifs.upcall utility is invoked for UNC path server name to IP address resolution. The CIFS functionality is encapsulated by the dns_resolve_unc_to_ip() function, which is used to resolve a UNC path to an IP address for CIFS filesystem. This part remains in the CIFS module for now. See the added Documentation/networking/dns_resolver.txt for more information. Signed-off-by: NWang Lei <wang840925@gmail.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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